Maintenance - Craftsman 919.165520 Owner's Manual

Customer Responsibilities
Check Safety Valve
Drain Tank
Air Filter
Air compressor pump intake
and exhaust valves
1- more frequent in dusty or humid conditions
power is on. When performing
maintenance, you may be exposed
to voltage sources, compressed
air, or moving parts. Personal
injuries can occur. Before
performing any maintenance or
repair, disconnect power source
from the compressor and bleed off
all air pressure.
To ensure efficient operation and
longer life of the air compressor
outfit, a routine maintenance
schedule should be prepared and
followed. The following routine
maintenance schedule is geared to
an outfit in a normal working
environment operating on a daily
basis. If necessary, the schedule
should be modified to suit the
conditions under which your
compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Compressor outfits in
an extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
NOTE: See "Operation" section for
the location of controls.
D27221

MAINTENANCE

Before
each
use
Unit cycles
automatically when
Daily or
Every
after
40
each
hours
use
(1)
To Check Safety Valve
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve to
make sure that the safety valve
operates freely. If the valve is
stuck or does not operate
smoothly, it must be replaced
with the same type of valve.
To Drain Tank
1. Set the On/Auto/Off lever to
"OFF".
2. Pull the regulator knob out and
turn clockwise to set the outlet
pressure to zero.
3. Remove the air tool or
accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
tank. If not drained, water will
corrode and weaken the air tank.
16- ENG
Every
Yearly
100
hours
If the safety valve
does not work
Water will
condense in the air